A Low-Complexity Step-by-Step Decoding Algorithm for Binary BCH Codes
C.-L. CHR · IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences · 2005
A low-complexity step-by-step decoding algorithm for t-error-correcting binary Bose-Chaudhuri-Hocquenghem (BCH) codes is proposed. Using logical analysis, we obtained a simple rule which can directly determine whether a bit in the received word is correct. The computational complexity of this decoder is less than the conventional step-by-step decoding algorithm, since it reduces at least half of the matrix computations and the most complex element in the conventional step-by-step decoder is the matrix-computing element.